Improvement in wheels for furniture-casters



C. B. SHELDON.

Wheels for Furniture Casters.

No. 140,311, I Patentedlune24,1873.

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AM. Pnom-mwosmmlcca 1vx( osBoRus'sPRncEss) UNITED STATES PATENT QFFIGE.

OEVEDRA B. SHELDON, OF NEW YORK, N. Y.

IMPROVEMENT IN WHEELS FOR FURNlTURE-CASTERS- Specification forming part of Letters Patent No. 140,311, dated June 24, 1873 application filed March 22, 1873.

1'0 all whom it may concern:

Be it known that I, CEV'EDRA B. SHELDON, of New York, in the county of New York and State of New York, have invented a new and useful Improvement in the Construction of Iron or Brass Pulleys or Caster-Wheels; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawing forming a part of this specification, in which- Figure 1 is a side elevation. Fig. 2 is an end view. Fig. 3 is a cross-section of one of the two halves. Fig. 4 is a detail view of a half-hub and inside face. Fig. 5 is a detail view of the rivets.

The invention relates to the construction of brass pulleys or caster-wheels so as to render unnecessary the labor and expense of turning them into shape, and to reduce the cost of manufacture. The invention consists in mak- -ing the pulley; or caster wheel in two sections,

on a plane passing through rim and at right angles to the plane of axis, the rim, cup, halfhub, and inner face being made in one piece.

In the drawing, A A represent a pulley or caster wheel, consisting of two parts. a a are the outside cups, in which project the halfhubs a (1*, while a a are the plane inside faces, which are'intended to coincide when the sections are locked together. The cup-form a is obtained by bending the metal with a corresponding plunger and die and then turning over the edge until it meets the disk part,

while the hub a is formed by punching out a central aperture of suitable size and then drawing it into shape with plunger and die.

This gives strength near the middle of pulley, where it is most wanted. B is a tubular rivet, made of brass or other soft metal, passed through the two half-hubs, a a and having their ends upset over the ends of hubs or over the inwardly-turned flanges a a.

By making soft-metal pulley, caster, or analogous wheels in the two sections described, these articles may be supplied to the public at greatly reduced expense, while they will still be in every respect as well adapted to their purpose as before.

The coupling of the twosections by a tubular rivet is not only cheap, convenient, and easy of application, but, withal, takes up the wear and may be easily replaced when unequal wear shall have caused the wheel to stand out of a plane exactly perpendicular to the shaft.

I do not confine myself to any particular method or process of swaging or striking up the sections composing the wheels, nor to the exact shape shown; but

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

A pulley or caster wheel made up of two sections, divided on a plane passing through the rim or axis, said sections being each made with the cup a, half-hub a, inside face a, and double rim or edge formed from a single piece of sheet metal.

OEVEDRA B. SHELDON.

Witnesses:

SOLON C. KEMON, T. DURBIN D. OURAND. 

